Remove The Wi-Fi Card - Lenovo 14w 81MQ Hardware Maintenance Manual

Step 3. Remove the power board.
Figure 15. Remove the power board
Refer to "Major FRUs and CRUs" on page 26 to look up details about the following replacement part:
Power board

Remove the Wi-Fi card

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 32
"Remove the battery pack" on page 33
"Remove the heat sink" on page 36
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Hardware Maintenance Manual